Roland Corporation is a Japanese manufacturer of electronic musical instruments, electronic equipment and software. Roland has manufactured numerous instruments that have had lasting impacts on music.
Roland E-4 Voice Tweaker
$289.99
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Roland E4 – Voice Tweaker Aira Compact
- Vocal performance tool with powerful voice transformer effects
- Instantly shape the sound with pitch and formant sliders
- Advanced vocal effects including Auto Pitch, harmony, and vocoder
- Dial up unique rhythmic effects with the Scatter knob
- Process the sound output with high-quality reverb, echo, tempo delay, and chorus effects
- Low-cut filter and noise gate to eliminate unwanted sounds
- 24-second looper with unlimited overdubbing, undo/redo, and automatic BPM detection
- Supports external MIDI control of pitch, harmony, and vocoder functions
- ¼-inch mic input with wide-ranging gain control
- Headphones output with support for an inline mic
- Comprehensive connectivity with audio, MIDI, and sync I/O plus AIRA Link
- Class-compliant USB-C audio/MIDI interface—no drivers needed
- Lithium-ion battery with up to 3.5 hours of operation per charge
- Sturdy construction and robust controls
- Connect to other AIRA Compacts and standard MIDI devices with optional BOSS TRS MIDI cables
| Availability | in Laval & Montreal |
|---|---|
| Brand | Roland |
In stock
Roland E-4 Voice Tweaker … A vocalist’s best friend
The E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it. Flip through hands-on controls to manipulate the sound, and chain in AIRA Compacts and other electronic instruments and let them ride in perfect sync.
INSPIRING ROLAND VOCAL PROCESSING.
The E-4 combines powerful voice transformer tools and standard vocal effects with a tactile interface that’s meant to be played. This lean, mean machine puts a treasure trove of top-quality processing in a go-everywhere gadget that’s endlessly enjoyable and amazingly affordable.


PERFORM WITH SOUND.
By working the E-4’s inviting panel, you can go from traditional vocal enhancements to punchy beatboxed grooves to striking alien soundscapes—all in a single performance. Select different sonic shapers, trigger looper controls, cycle through Scatter effects, and tweak pitch, formant, and more in the flow.

HARMONIC EXPLORER.
Take your singing to the next level with automatic harmony effects. Set the key and chord voicing on the fly and bring head-turning flair to any song. And with Auto Pitch, you can dial in everything from subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks.

LOOP AND SCATTER.
Turn one voice into an entire orchestra using the 24-second looper. Overdub layer after layer with the E-4’s effects to create wild, vocal-driven rides. Then slice and dice with the expressive Scatter knob, which chops your sound into colorful bits that you control with a twist.

CHANNEL YOUR INNER ROBOT.
Use direct-access tools to instantly change your vocal gender, conjure sounds from outer space, or transform yourself into a mechanical persona (good or evil is up to you). There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the E-4’s pitch functions, or an external MIDI keyboard for an endless variety of textures.

LINK UP AND GO.
Connect a handheld mic to the front input for performing, or use a gaming headset or the inline mic on your earbuds to bring fresh vocal fun to your next livestream or podcast. Sync with other AIRA Compacts like the T-8 Beat Machine and J-6 Chord Synthesizer to expand your range. Or interface with computer DAWS, mobile music apps, and hardware instruments via USB-C or MIDI.

EVERYWHERE AT ONCE.
The E-4 creatively accentuates vocals anytime and anywhere. The lithium-ion battery provides up to 3.5 hours of power per charge, and the rugged Roland build will support inspired magic and mayhem for a long, long time.

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FREE SHIPPING ON MOST PRODUCTS OVER $100
We offer free shipping on most products of $ 100.00 and over with a dimensional weight under 35 pounds.
For orders over $100 with no weight overload or fuel overload, after checking the best delivery options, we could refund you part of shipping fees.
Free shipping is not valid for remote regions such as Nunavut, Yukon, Northwest Territories and the non-metropolitan regions and all other areas driven by our courier. (Purolator / FedEx / UPS). All items will be shipped uninsured via Purolator or Canada Post. Insurance can be added, please just call us to know the details. It is also possible to deliver order by bus for Quebec resident. Please contact us to get more information about this option.
In store pick up
- To pick up your order in store, please write it down in the additional information. Specify the store of your choice. (Laval or Montreal)
- When your order is ready, we will notify you.
- You can then come to the selected store to pick up your order by presenting the credit card used for the transaction and a valid Photo ID card showing the billing address that appears on your order.
Roland E-4 | |
| Effect Type | AUTO PITCH |
| HARMONY | |
| VOCODER | |
| PITCH | |
| FORMANT | |
| SCATTER | |
| REVERB | |
| DELAY | |
| ECHO | |
| CHORUS | |
| LOOPER | |
| Maximum Recording Time | Approximately 24 seconds |
| Display | 7 segments, 4 characters (LED) |
| Connectors | SYNC (IN, OUT) jacks: Miniature phone type |
| MIX (IN, OUT) / HEADSET jacks: Stereo miniature phone type (Stereo, CTIA) | |
| MIDI (IN, OUT) jacks: Stereo miniature phone type | |
| MIC IN jack: Stereo phone type | |
| USB port: USB Type-C® (Audio, MIDI) | |
| Power Supply | Rechargeable lithium-ion battery |
| Obtained via USB port (USB bus power) | |
| Current Draw | 500 mA |
| Expected battery life under continuous use | Approx. 3.5 hours |
| * These figures will vary depending on the actual conditions of use. | |
| Expected battery charging time | Approx. 3 hours |
| * To charge the unit, use the USB port of a computer or a commercially available USB power supply adaptor (5 V, 500 mA or higher). | |
| Accessories | Leaflet ”Read Me First” |
| USB Type-C to USB Type-A cable | |
| SIZE AND WEIGHT | |
| Width | 188 mm |
| 7-7/16 inches | |
| Depth | 106.5 mm |
| 4-1/4 inches | |
| Height | 41.7 mm |
| 1-11/16 inches | |
| Weight (including batteries) | 290 g |
| 11 oz |

















































